This in vitro study was performed to examine if the pH decrease in the vicinity of degrading polylactic acid (PLA) and polyglycolic acid (PGA) polymers can be offset by incorporation of basic salts within PLA-PGA implants. It has been suggested that such pH lowering results in adverse effects, which may be responsible for biocompatibility concerns raised recently about PLA and PGA polymers. The...

Abstract Since its invention, polyethylene (PE) has brought many conveniences to human production and life. In recent years, however, environmental pollution threats health caused by insufficient PE recycling have attracted widespread attention. Biodegradation is a potential solution for preventing pollution. this study, Bacillus subtilis licheniformis , which are in the environment, were exami...

background: urinary tract infection (uti) is considered as the most common bacterial infectious disease seen among the pediatric patients. the aim of this study was to investigate the prevalence and antimicrobial susceptibility of bacterial uropathogens isolated from the pediatric patients with urinary tract infections. methods: this descriptive study was conducted in children medial center, te...

For greater durability, materials must withstand contact with water, making it difficult for biodegrading agents to attack. The present study produced and evaluated the heat transfer two pressing times physical properties of OSB panels, pinewood strands Al2O3 nanoparticles addition. were synthesized through sol-gel-protein method added resin in proportion 0.5%. During process, distribution cent...

abstract       background and objective: the spread of drug resistance in bacteria have prompted researchers to seek suitable alternative for antimicrobial drugs among various medicinal plants and nanoparticles. the aim of this study was to evaluate the effect of silver nanoparticles alone and in combination with methanol extract of zataria multiflora on five gram-positive and gram-negative bac...

acute infectious gastroenteritis is one of the most common infectious diseases of humans in the world. diarrhea is a significant cause of death in infants. it has been estimated that up to 15% of children in developing nations die of diarrhea before 3 years of age. this study has been carried out to investigate entheropathogenic bacteria from 558 specimens of children less than 5 years of age. ...